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Updated: Jan 23, 2026
11:20
Fabrication of Superhydrophobic Metal Surfaces for Anti-Icing Applications
Published on: August 15, 2018
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A Capsule-Like Encapsulation Strategy for Waterborne Fabrication of Ultradurable Superhydrophobic Coating with
Rui Feng1, Ronggang Zhang2, Fang Wang2
1Key Laboratory of Archaeological Exploration and Cultural Heritage Conservation Technology, Ministry of Education, NPU Institute of Culture and Heritage (NICH), Northwestern Polytechnical University, Shaanxi 710072, China.
ACS Applied Materials & Interfaces
|January 22, 2026
Summary
A novel waterborne superhydrophobic coating uses diatomite to encapsulate nanoparticles, offering robust durability and self-repairing properties. This eco-friendly solution overcomes fabrication challenges for advanced surface engineering.
Area of Science:
- Materials Science
- Surface Chemistry
- Nanotechnology
Background:
- Developing eco-friendly superhydrophobic coatings is crucial but challenging due to filler-water incompatibility.
- Solvent-free, waterborne fabrication methods struggle with durability and multifunctionality.
Purpose of the Study:
- To create a stable, durable, and multifunctional superhydrophobic coating using a waterborne system.
- To address the trade-off between waterborne fabrication and coating durability.
Main Methods:
- Utilized a capsule-like encapsulation strategy with diatomite scaffolds and fluorinated SiO2 nanoparticles (F-SiO2) in waterborne polyurethane (WPU).
- Employed pore encapsulation for stable emulsion formation.
- Investigated damage-responsive nanoparticle migration for self-repairing properties.
Main Results:
- Achieved a uniform, stable waterborne emulsion and a superhydrophobic coating.
- Demonstrated "damage-responsive" F-SiO2 migration upon abrasion, enhancing surface roughness and self-repairing superhydrophobicity.
- Exhibited harsh environmental resilience (temperature, pH, UV, plasma) and excellent wear resistance (>2500 Taber cycles).
- Unlocked multifunctionality including colorability, anti-icing, and active de-icing capabilities.
Conclusions:
- The developed coating offers superior solvent-free processing, water repellency, durability, and reparability.
- This work establishes a generalized platform for sustainable adaptive surface engineering, overcoming key fabrication-durability challenges.
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